Are Dark Pools Destined to be the Next Financial Black Hole?

We can almost hear that ominous " Jaws " theme music in the background and can see that huge dorsal fin as it slices threateningly through the water - knowing full well that the real terror is hidden beneath the water's surface.

But this time around, it's not a "Great White" that's sparking our fears; it's a well-capitalized and broadly based series of secret stock exchanges known as " Dark Pools of Liquidity ," "Dark Liquidity," or just "Dark Pools."

Most investors have never even heard the term - and are truly shocked to discover these "off-the-books" trading networks actually exist.

But to Wall Street insiders looking to anonymously move billions of dollars in stocks, bonds, and other investment instruments, dark pools are de rigueur - especiallywhen you're an institutional trader who doesn't want to reveal your intentions or your actions to the "rest" of the market, until after the fact when the orders are "printed."

And that makes these dark pools of capital highly problematic when it comes transparency: There is literally none in most pools and only limited visibility in others.

Dark Pools: From Trading Haven to Heavyweight

Dark Pools are electronic " crossing networks " that offer institutional investors many of the same benefits associated with making trades on the stock exchanges' public limit order books - without tipping their hands to others, meaning publicly quoted prices aren't affected. This is the capital markets' version of a godsend - especially for traders who desire to move large blocks of shares without the public investors ever knowing.

In an era in which "secret" transactions contributed to what's shaping up to be the largest credit crisis in history, you'd think that any mechanism that allows insiders to trade in complete secrecy and with total anonymity would be scrutinized more closely than a Roger Clemens vitamin shot . But that's not the case with Dark Pools.

As has long been the case, the old boys really do like to operate behind closed doors, on the other side of the "velvet rope" - beyond which the un-anointed daily working stiff may never pass. And Dark-Pool operators are only getting more private as computerized trading becomes more sophisticated and large-scale-order placement evolves into a science all to itself.

Dark Pool ownership involves almost the entire institutional-trading sector, consisting of independents, broker/dealer-owned pools, consortiums and even - as hard as this is to imagine, given the public's trust - the stock exchanges themselves (See accompanying chart).

And business is booming.

According to the latest data, nearly 12% of daily U.S. stock-trading volume is presently conducted via the 40 or so Dark Pools operated by the " usual suspects ."

According to The Wall Street Journal , Credit Suisse Group AG (ADR: CS ) is assembling a network of 30 Dark Pool partners, while JP Morgan Chase & Co. ( JPM ) is trying to become the Google Inc. ( GOOG ) of the Dark Pool world by aligning itself with Neovest Inc . Not to be left out, Goldman Sachs recently struck reciprocal deals with rivals UBS AG ( UBS ) and Morgan Stanley ( MS ) to allow previously proprietary trading algorithms to work on each other's desktop trading systems.

This is something the stock exchanges don't want to see because it strips them of order execution revenue. Which is why they're getting into the game, too. At the present time, the Nasdaq ( NDAQ ) alone shunts some 18% of its volume - or roughly 350 million shares a day - through what insiders euphemistically refer to as its "non-displayed platforms," and also has struck a deal with five unnamed Dark Pool operators that are rumored to route nearly half of the total Dark-Pool volume in the United States today.

NYSE Euronext ( NYX ) plans to connect up to 30 such pools, so don't think for a New York minute that this isn't a global phenomenon - Dark Pools exist all around the globe.

We're still in the early days of this movement. That means there are still lots of things to be worked out from a technical standpoint. For instance, there's very little in the way of proprietary software that enables any Dark Pool operators to "talk" with their competition.

But we think that's going to change in a real hurry in the next few years, when as much as 50% of all U.S. trading volume will be handled by "Dark Pool Alliances."

Dark Pool Downers?

While it's hard to say just how this will affect individual investors like us, my experience as a professional trader suggests that there are a few "realities" we can count upon.

As you might expect, not all of them are good.

Let's look at the top three:

First, as more volume moves to the so-called Dark Pools, the very notion of what constitutes "public pricing" becomes suspect. Practically speaking, if we're seeing only 50% of the trading volume in a given stock, who's to say that the pricing we're seeing is accurate if the other half remains a mystery.

Second, the small- and mid-cap stocks that for so long have been the domain of smaller investors will likely become harder to trade. The reason: Dark Pools will absorb the liquidity that's presently out in the open, just as a " black hole " in outer space sucks in all the matter that's nearby. The net effect could be that smaller transactions become more inefficient, or that public pricing actually disconnects from private pricing. Either way, individual investors may not get the best possible prices.

Third, you can bet regulators will get interested if there is even a whiff of impropriety at the expense of smaller investors who perceive (and rightly so) that they are being "locked out" of the markets by the big boys yet again.

On the other hand, maybe those regulators don't care at all. With the economy going the way it is right now, there's plenty more to worry about… like making it out of the water and back up onto the beach before the music stops and "you-know-who" grabs you from below…… da-dun…da-dun….da-dun….da-dun .

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